Cell timing in a wireless device and base station
US8989128B2 · kind B2 · utility
89Cited by
0References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 14, 2013 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Oct 1, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless device receives a control message configuring cell groups comprising a primary cell group and a secondary cell group. The wireless device receives a timing advance command comprising a time adjustment value and an index identifying the secondary cell group. The wireless device applies the time adjustment value to uplink transmission timing of the secondary cell group. The wireless device triggers an action in response to detecting a difference between primary cell group timing and secondary cell group timing, the difference being greater than a threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.